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HomeKey Engineering MaterialsKey Engineering Materials Vols. 240-242Macro and Micro Fracture Behaviour of Biomaterials

Macro and Micro Fracture Behaviour of Biomaterials

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Bioceramics 15

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Periodical:

Key Engineering Materials (Volumes 240-242)

Pages:

915-918

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.240-242.915

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Online since:

May 2003

Authors:

S. Sakakura, Giuseppe Pezzotti

Keywords:

Bone, Fracture Mechanic, Raman Microprobe Spectroscopy, Synthetic Hydroxyapatite

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© 2003 Trans Tech Publications Ltd. All Rights Reserved

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[2] T. Kokubo, M. Shigematsu, Y. Nagashima, M. Tashiro, T. Nakamura, T. Yamamuro, S. Higashi: Bull. Institute for Chemical Research, Kyoto University. Vol. 60 (1982), p.260.

[3] J. Wilson, A. Vli-Urpo, R.-P.Happonen: in: L.L. Hench and J. Wilson (Eds.): An Introduction to Bioceramics, World Scientific Publ., Singapore (1993), p.63.

[4] R. Z. LeGeros, J. P. LeGeros,: in: L.L, Hench and J. Wilson (Eds.): An Introduction to Bioceramics, World Scientific Publ., Singapore (1993), p.139.

[5] T. Kokubo: Acta Mater. Vol. 46 (1998), p.2519.

[6] G. Pezzotti: J. Raman Spectr. Vol. 30 (1999), p.867.

[7] G. Pezzotti: Composites Sci. Technol. Vol. 59 (1999) p.821. 0 20 40 60 80 100 Distance behind crack tip, x (Ǵm) Bridging stress,ǻޓ (MPa) hydroxyapatite/silver monolithic hydroxyapatite bovine femur 0 0 200 200 200 0 BR Fig. 4: Linear map of bridging stresses collected in situ by Raman microprobe spectroscopy along the crack wake in various hydroxyapatite -based materials. Fig. 3: SEM micrographs bridging ligaments in: (a) hydroxyapatite/silver composite; (b) bone (bovine femur).